CN203129740U

CN203129740U - Device for prompting of forgetting plugging key out

Info

Publication number: CN203129740U
Application number: CN 201320149250
Authority: CN
Inventors: 王静雪
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-08-14
Anticipated expiration: 2023-03-28

Abstract

The utility model relates to a device for prompting of forgetting plugging a key out. The device comprises a normally open trigger switch K and a music prompting work circuit controlled to work by the normally open trigger switch K, wherein the normally open trigger switch K is controlled to be turned on/off by the key inserted into a lock core. The utility model aims to provide the device for prompting of forgetting plugging the key out.

Description

Key is forgotten the reminder device

Technical field

The utility model relates to a kind of key and forgets the reminder device.

Background technology

People are opening the door or are closing behind the door, usually forget because of a variety of causes and pull up key, bring opportunity to the lawless person easily like this, have brought great hidden danger for people's property and personal safety.

Summary of the invention

The purpose of this utility model is to overcome the above-mentioned defective of existing in prior technology, provides a kind of key to forget the reminder device.

The purpose of this utility model is achieved through the following technical solutions: a kind of key is forgotten the reminder device, it is characterized in that: it comprises often opens trigger switch K and reminds operating circuit by the music of often opening trigger switch K control work; Often open trigger switch K and control closed conducting by the key that inserts lock core.

Compared to prior art, advantage of the present utility model is: by the utility model is installed on the door lock, when people open the door or close behind the door, forget when pulling out key that key is forgotten the reminder device and will be sounded, remind people to pull out key, music just stops after pulling out key, guaranteed people's property and life security, simple in structure, easy to use.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1 key when forgetting the reminder device and opening.

Fig. 2 is the structural representation of Fig. 1 key when forgetting the reminder device and closing.

Fig. 3 is the utility model embodiment 2 keys structural representations when forgetting the reminder device and opening.

Fig. 4 is the structural representation of Fig. 3 key when forgetting the reminder device and closing.

Fig. 5 is that music is reminded the operating circuit structure chart.

Label declaration: 1 lock core, 2 keys, 3 pellets shot from a slingshot, 4 snaps, 5 push plate.

The specific embodiment

Be elaborated below in conjunction with Figure of description and the utility model content of embodiment:

Embodiment 1:

As Fig. 1, Fig. 2, Figure 5 shows that a kind of key that the utility model provides forgets the embodiment schematic diagram of reminder device.

A kind of key is forgotten the reminder device, it is characterized in that: it comprises often opens trigger switch K and reminds operating circuit by the music of often opening trigger switch K control work; Often open trigger switch K and control closed conducting by the key (2) that inserts lock core (1).

The described shake-up end of often opening trigger switch K passes snap 4 and is connected with pellet shot from a slingshot 3.When key 2 inserts lock core 1, rotate key 2 and unblank, key 2 is in rotation process, pellet shot from a slingshot 3 pushed away from keyhole, and the trigger switch K that often opens that is connected with pellet shot from a slingshot 3 touches the contact that music is reminded operating circuit, circuit communication, key is forgotten the unlatching of reminder device, and loudspeaker Y plays music; When people pull out key 2, pellet shot from a slingshot 3 resets under the effect of snap 4 again, often opens trigger switch K resilience and leaves contact, and circuit is closed, and music just stops.

Described music reminds operating circuit to comprise power supply E, chip IC, loudspeaker Y and triode BG.Described power supply E can be the DC source of 3V.Chip IC can be selected CW9300 type music integrated circuit for use, and triode BG can select 9013 type transistors for use, and the resistance of loudspeaker Y can be 8 Ω.

The positive pole of described power supply E is connected with 1 pin of chip IC and the utmost point of loudspeaker Y respectively, the negative pole of power supply E is connected with 3 pin of chip IC and the emitter stage of triode BG respectively, the colelctor electrode of described triode BG is connected with another utmost point of loudspeaker Y, and the base stage of triode BG is connected with 2 pin of chip IC.

Embodiment 2:

As Fig. 3, Fig. 4, Figure 5 shows that another kind of key that the utility model provides forgets the embodiment schematic diagram of reminder device.

It comprises often opens trigger switch K, power supply E and reminds operating circuit with the music that power supply E is connected with Chang Kai trigger switch K; Often opening trigger switch K is opened by the key 2 that inserts lock core 1.

Be positioned between snap (4) and the pellet shot from a slingshot (3) and be provided with the push plate (5) of fixedlying connected with the shake-up end of often opening trigger switch K.

Described music reminds operating circuit to comprise power supply E, chip IC, loudspeaker Y and triode BG.

Claims

1. a key is forgotten the reminder device, it is characterized in that: it comprises often opens trigger switch K and reminds operating circuit by the music of often opening trigger switch K control work; Often open trigger switch K and control closed conducting by the key (2) that inserts lock core (1).

2. key according to claim 1 is forgotten the reminder device, it is characterized in that: the described shake-up end of often opening trigger switch K passes snap (4) and is connected with pellet shot from a slingshot (3).

3. key according to claim 1 is forgotten the reminder device, it is characterized in that: be positioned between snap (4) and the pellet shot from a slingshot (3) and be provided with the push plate (5) of fixedlying connected with the shake-up end of often opening trigger switch K.

4. forget the reminder device according to any described key of claim 1-3, it is characterized in that: described music reminds operating circuit to comprise power supply E, chip IC, loudspeaker Y and triode BG.

5. key according to claim 4 is forgotten the reminder device, it is characterized in that: the positive pole of described power supply E is connected with 1 pin of chip IC and the utmost point of loudspeaker Y respectively, the negative pole of power supply E is connected with 3 pin of chip IC and the emitter stage of triode BG respectively, the colelctor electrode of described triode BG is connected with another utmost point of loudspeaker Y, and the base stage of triode BG is connected with 2 pin of chip IC.